kreis



Nov. 27, 1934.

J. D. KREIS 1,982,346

YARN PRINTING MACHINE Original Filed May 4, 1932 6 Sheets-Sheet lZhwentor JOSEPH .D- KRE/S Os *M attorneys Nqv. 27, 1934. J. D. KREIS.

YARN PRINTING MACHINE Original Filed May 4, 1932 6 Sheets-Sheet 2 JOSEPH.D KPELS 6 Sheets-Sheet 3 Gttorneg'i J. D. KREIS YARN PRINTING MACHINEOriginal Filed May 4, 1932 Nov. 27, 1934.

Nov. 27, 1934. J. D. KREIS 1,982,346

YARN PRINTING MACHINE Original Filed May 4, 1932 6 Sheets- Sheet 4 42aZhwentor 496? JOSEPH D.kEE/$ (Ittorncgs Nov. 27, 1934. V J. D. Km

. YARNPRINTING MACHINE Original Filed May 4, 1932 6 Sheets- Sheet 5 Nov.27, 1934. J. D. KREIS YARN PRINTING MACHINE Original Filed May 4, 1952 6Sheets-Sheet s JOSEPH D. KEE/S i Gttomegs Patented Nov. 27, 1934 71,982,346 YARN PRINTING MACHINE Joseph D. Krcis, Cleveland, Ohio,assignor to The Erie Dyeing & Processing 00., Cleveland, hio,

a corporation .of Ohio Application May 4, 1932, Serial No. 809,162Renewed October 4, 1934 20 Claims. (oi. 101-472) This invention relatesto machines for printing yarn, and similar textile fibers incident toweav ing or knitting the latter into fabrics of the character in whichthe appearance of tweed is simulated or in a fabric having apredominating color mottled with an irregularly appearing tracer threador mark as exemplified in Figure 20 of the drawings herein.

Those skilled in the textile industry are familiar with the fact thatsuch eifectsmay be obtained by employing a yarn or thread havingirregularly-spaced applications of color dye extending throughout thelength thereof. It is essential I that these dyed portions beirregularly spaced, otherwise, certain of the dyed areas will becomemassed when the yarn or thread is knitted or woven and the resultantfabric will attain an undesirable and uncontrollable shade or patternwhich may vary in tone design or texture, as for instance certain areasmay be mottled, others may attain a figure, stripe or pattern whilestill others may differ substantially in color and give an odd orunsightly appearance to the fabric.

Heretofore, as far as I am aware, the only method for the irregularprinting of yarn or thread for these fabrics which has been foundpractical in the textile industry has been to employ manual or handlabor, the attendants stamping or printing the textile fibers in a hap-301 hazard manner to produce the desired irregularly spaced dyed marks."Such practice is not only expensive but, as will be obvious, results inregular spacing of the dyed portions at periods, since it is impossiblefor a laborer to properly gauge or time the stamping or printingoperation without slowing down the work to a point where the productwould be prohibitively expensive.

The primary object of the present invention, therefore, is to provide ahighly efficient, practical machine which will print or dyeirregularlyspaced marks of variable length upon the yarn or threadconsistently day in and day out,the machine being capable of producingmany and varied irregularly-spaced portions or spots along the length ofthe yarn or thread, which latter may be subsequently knit, woven orotherwise made up into fabrics having an attractive mottled appearance.

The foregoing and other objects and advantages will be rendered apparentin view of the following description taken in conjunction with thedrawings, wherein:---

Figures 1 and 2 are, respectively, views in plan and side elevation of ayarn or thread--printing 1-555 machine embodying the features of theinvention in preferred form, certain parts of Fig. 2 being removed toshow the frame construction;

Figs. 3 and 4 are sectional views taken substantially on the planesindicated by the lines 8 3-3 and 4-4, Fig. 2;

Fig. 5 is an end elevation of the parts shown in Fig. 6;: v l J V i Fig.6 is an enlarged detail fragmentary sectional view taken substantiallyon a plane indica-ted by the line 6-6, Fig. 2; r

Fig. 7 is a View similar to Fig. 6, showing in further detail the partsillustrated in Fig. 4;

Figs. 8 p018, inclusive, are enlarged detail views of certainparts ofthe machine which are more or less intimately concerned with thefeatures of the invention; v Fig. 19 is an enlarged sectional view takenon the line 19- 19, Fig. 4; and g Fig. 20 is illustrative of one of thetypes of fabric that may be produced by yarn or thread printed by themachine embodying the present invention. Referring in detail to thedrawings, and first generally to Figs. 1, 2 and 3, the machine in itsentirety comprises a plurality of printing units which are supported inseries on channel base members 5, the units being inner-geared forsynchronous operation. Since these units are substantially identical, adescription of one will sufiice for all. Each unit embodies adye-feeding roll A, an absorbent or pad roll B, and a printing roll C,which are provided with shafts or spindles 6. '7 and 8 journaled insuitable bearings borne by the frame of the machine. The upper and lowerrolls C and A are mounted in adjustable hanger brackets 9 and 10 carriedby side frame stanchions 12 and a transversely disposed spacer framemember 13, and the roll B is carried directly by the said frame members12. The rolls of eachunit are driven by means of gears 14, 15 and 16affixed upon the outer ends of the spindles 6, 7 and 8, respectively.The machine units (four in the present instance) are inter-geared bymeans of idler gears 17, each of which is mounted on a shaft havingbearing in one of the stanchions 12. The hanger brackets 9 which carrythe rolls A are supported at one extremity thereof by the stanchions l2and at their opposite ends through the medium of links 18 which arescrew threaded and supported at its opposite extremities upon pivotallymounted rods 20 which are provided with screw threaded ends having handwheels 21 thereon to regulate the tension upon the springs 22. The rollA is partly submerged in fluid dye compound carried by a reservoir ordye pan 23, which is mounted on brackets movably supported by the sideframe members 9. These brackets are provided with racks 24 adapted tomesh with gears 25 mounted upon a cross shaft 25. A hand wheel 27 isafilxed to the one end of the shaft 26 to facilitate adjustment of thepan relative to the roll A. The dye or coloring material may be suppliedto the pans by means of a funnel 28 which is associated wth a pipe lineor conduit 29.

The yarn or thread, indicated at Y, is fed into the machine over asuitable guide 30 and passes downwardly and around a tension roll 31,doubles back over a second tension roll 32 and then be tween the rolls Band C of the first printing unit.)

The roll 31 is carried by a pivotally mounted hanger bracket 31a whichis adiustab y supported at one extrem ty thereof by rods 31?) havingthreaded end portions upon which hand wheels 2 0 a e moun ed. Mounted atthe outgoing end of the machine is a reel which is carried upon o voally mounted brackets 34, provided with an adiust ng screw 35.

The present invention is primarily concerned with the printing roll C.its appurtenances and cooperating parts whereby the desired irregular nn+in z of the yarn or thread is obtained. and the fo lowing d scr t onconfined and directed more or less in detail to this organization.

The roll C is preferably made up of an assembly com rising the shaft 8.(Figures 4 and 19) shown formed with a p u ality of annular c earancegrooves 36c and longitud nally extendin keyways 36b and 360: a luralityof longitud nally reciprocab e cam members or bars 27. each having aplurality of cam faces or teeth 37c. formed on the outer surfacethereof: a like number of sim larly shaped radally-recinrocahe cam bars38 having cams or cam teeth 28!]. adapted to coact w h the teeth 37: aplurality of read ly removable and re aceable pr nt ng plates or rails 9secured on the outer aces of the bars 33; and comb ned cam-bar u de andre ainer'members 40 and 400.. wh ch are plined on the opposite ends ofthe shaft 36 and e ain the foregoing m mbers n op rat ve ass ledrelation.

One of the membe s 40. 4012 is shown in detail in Figs. 10 and 11. Theinner face of each member is formed w th a plurality of rad al cam-barguide grooves 401), and the circumferential portion of the face of sa dmember with grooves 46c bounded by lugs 40d. The central portion of themember 40 is provided with. a plurality of gu de bores 40c for a purposeto be described.

There is a groove or track 401) for each set of cam bars 37, 38 so thatwhen the end members 40, 40a are mounted upon the shaft 36, these barswill register with. the grooves, each of the outer bars 38 reciprocatingradially in its respective guideway or groove.

The bars 33 are normally urged radially inward- 1y by means of thespring assembly shown in Fig. '7. Each bar 38 is recessed at itsopposite ends to receive a shoe forming part of a spring housingassembly comprising telescoping cylinders or blocks 41 and 41a, a spring41b, and a pin 41c. As shown, a separate assembly is provided for eachbar 38 in both the end members 40 and 40a, but it will be obvious thatthis is a matter of design and may be varied as found expedient.

By referring to Fig. 19, it will be noted that there are twenty-four cambars and a like number of printing bars in the example shown.

The printing bar actuating mechanism is governed primarily by huntinggear mechanism including one or more cam plates or hunting gear members42 and 42a, note Figs. 14 and 15, which are formed with teeth 42b and420 to effeet, in conjunction withan internally toothed gear unit, anintermittent movement of the parts co-ordinated therewith. In theexample shown, there are twenty-seven teeth in the gear 42 andtwenLy-five in gear 42a. One or a set of these cams or gears are mountedfor free rotation on bearings 44 carried by'one extremity of a fixedshaft 43, which extends across the machine and is supported at each sideby the brackets 10 and frame member 13. These hunting gear members 42and 42a transmit motion to a plurality of radially movable plungers 45,one of which is shown in detail in Fig. 8. These plungers are mounted ingrooves or guideways in a spider gear 46, which is formed on its innerface with a plurality of radial grooves 46a. bounded by teeth 461), noteFigs. 16 and 1'7. The gear 46 rotates about a stationary retainer plate47, which is fixed on the end of shaft 43 by means of a nut 48. The gear46 and plungers 45 are held in operative assembled relation by means ofan inner retainer plate 49 which is fixed to the gear 46 by bolts 53 andis mounted on hearing 51 on the end of the shaft 43, said plate beingformed with an annular flange49a adapted to engage stop shoulders 45aformed on the plungers 45. The hunting gears 42, 42a, are mountedintermediate the revolving retainer member 49 and the stationary 1 endretainer plate 47. As shown herein, there are an even number (26) ofradial grooves 460. in the gear 46 and consequently an even number ofplungers 45, and there are an odd number of teeth in the hunting gears42, 42a. These 00- 1 acting teeth and plunger units should respectivelybe either odd or even, that is, if there are an odd number of teeththere should be an even number of units, or vice versa, for a purposewhich will soon become apparent. 1

The gear 46 is in constant mesh with a gear 52 (shown in detail in Figs.12 and 13), which is formed with a plurality of solts 52a and adjustablysecured to the printing roll gear 16 by means of bolts 53. The innerface of the gear 1 52 is radially grooved as at 52b at its periphery,forming a plurality of brackets 520. A coacting retainer plate 54 (seeFig. 13a) is provided as part of the assembly and is formed on its facewith a plurality of radially extending concave 1 grooves 54a and aseries of holes 54?) circumambient its axis and adapted to register withthe bores 46c in the member 40. A plurality of dogs or levers 55, (onefor each printing bar, or twenty-four) are pivotally mounted on a ring55, which is supported in grooves 57 formed in the brackets 520, saidgrooves providing a complete annular groove for said ring. The gear 52is formed with bolt holes 57a and the retainer plate 54 is securedagainst the inner face of the 1 said gear, with the concave grooves 54ain aligned registration with the grooves 52b. the body portion adjacentthe groove thereby effecting a closure of the grooves .57. The dogs orlevers 55 are thus pivotally suspended and permeans The dogs 55 transmitrectilinear motion-tothe cam bars 37 by means of plungers 58, which are:mounted forfree sliding movement inthe aligned bores- 40e and holes 54bformed in the members- 40' and 54, note particularly Fig. 6.

The entire printing-har-actuating mechanism above described is shownherein mounted atthe right-hand side of the machine and is protected bya housing or guard 59, see Fig. 2. The cambars 37 are actuated inreverse reciprocation by plungers 60 disposed at the left-hand end ofeach printing roll C, note Fig. 4. These plungers are mounted to slidein bores formed in the" end retainer member 40a and are progressively engaged by a cam 61 formed on a cam plate 62', see also Fig. 18, which isheld stationary with respect to the roll. Cam 61 continually returns anyof the bars 37 that may have been actuated during rotation oftheprinting roll to a retralcted position, and consequently retract thedogs or levers 55 back against the plungers 45. V

The operation of the machine is substantially as follows:

The'yarn or thread Y upon being fed in from 5 the left-hand end of themachine passes between the dye roll B and the printing roll C of eachunit. Dye roll B is provided with a felt or like absorbent covering 1)which is continually fed with dye by the feed roll A, and the printingbars 39 are adapted to press the yarn against this felt upon beingactuated radially by cam bars 37 and 38.

As the gear 45 rotates, the plungers 45 engage the teeth of the huntinggear members 42, 42a, Certain of these teeth are shallow, as at 420.These may be considered as printing teeth, since when a plunger 45engages therein, the plunger is moved radially and in turn actuates oneof the dogs 55. plunger 58, cam bars 37 and38", thus driving a printingrail 39 outwardly, so that upon further rotation of the roll C, saidrail will bear against the roll B.

As the gear 46 rotates, the plungers 45 gravitate between the teeth ofthe hunting gear-memhers 42, 42a, or in other words, have a floatingengagement with said teeth except when the plungers strike the dogs thuspermitting relative angular movement between the said hunting gearmembers and the plungers. When a plung er is driven radially outwardlyby a tooth 420 into engagement with a dog 55. a change takes" place inthe relative angular position of the hunting gear with respect to theplunger, due to the fact that the number of teeth of the gear is primewith respect to the number of plungers.

Since the hunting gears 42, 4201 are provided with a number of teeth,which is prime with respect to the number of plungers 45, the said gearswill be advanced or retarded for each revolution of the gear 46,depending uponthe number of teeth gears 42, relatively to the number ofplungers 45. In the example shown, the gear 4.2 having twenty-seventeeth will be retarded one tooth per one revolution of said gearand thegear 42o having twenty-five teeth will be ad vanced one tooth perISVOllltlOIl 0; said gear. In thisinstance the product of25x27 gives anum her which, when multiplied by'a number less than" twentydour, (thenumber of printing bars) and divided by twenty-four, gives a wholenumber. For example, 25x27 equals 675; 675x8 equals 5400; 5490 dividedby 24 equals a wholenumber. Thus in the presentcase the printing teethwill not repeat in a number oi revolutions equal tothe' product of 25x27x8, considering one printing bar only.

hetus assume, however,-that the hunting gear iz lias twen'ty-nine teethand gear 42a has thirtyone teeth, acombination whose product whenmultiplied by any number up to twenty-four and divided by twenty-fourgives a quotient ending in a r raetioni 'I'he'n the printing teeth: 420would not repeat in the cycle for a number of revolu tionsequal to tnerum-user of rinting bars times the number of teethin each hunting gear,or the product of 24 "29 31, neglecting the spacing of tlre printing'strokes. This event is timed to occur with respect to'one printing bar.If the bar cycle occurs once in say every 18 inches of yarn orthreadgthen repetition of that particular mark will not reoccur'lineallyfora number of revolut'ion's equal to the product of 18 2e 29 31. Thisnumber may be increased simply by adding additional hu'nting gears orcamplates each hav ing an odd number of teeth and having a circurhferential arrangement of shallow printing teeth which difier withrespect to the teeth and scope of the invention as defined by the an ipended claims.

What I claim is:-'

l. Ina machine of the class specified, a printing roll, a plurality ofprinting bars mounted for limited radial movement on said roll, meansfor driving" said roll, and means for actuating said bars, said lattermeans including a hunting gear and a plurality of radially-movablemotiontransmitting' units mounted around and having relative angularshifting movement with respect to the teeth of the gear, said gearhaving teeth adapted to co-act with said units, the sum of the teethrelative to the units being a prime number.

2. In a machine of the class specified, a printing'roll, a plurality ofprinting bars mounted for limited radial movement on said roll, meansfor driving said roll, and means for actuating said bar's; said lattermeans including a hunting gear and a plurality of radially-movablemotiontransmitting units mounted around and having relative angularshifting movement with respect to the teeth of the gear, said gearhaving teeth adapted to co-act with said units, the number of co -actingteeth and units bearing a prime relation one with respect to another.

3; In a machine of the class specified, a printing roll, a plurality ofprinting bars mounted for limited radial movement on said roll, meansfor driving said roll, and means for actuating said bars, said lattermeans including a hunting gear and a plurality of radially-movablemotiontransmitting units mounted around and adapted to have'relativeangular shifting movement with respect to' the teeth of the gear, saidgear having teeth adapted to co-a'ct with said units, there limitedradial movement on said roll, means for use driving said roll, and meansfor actuating said bars, said latter means including a hunting gear anda plurality of radially-movable motiontransmitting units mounted aroundand adapted to have relative angular shifting movement with respect tosaid gear, the ratio of gear teeth and units being such as to eitheradvance or retard the gear relatively to the units for each revolutionthereof.

5. In a machine of the class specified, a printing roll, means forrotating said roll, a plurality of printing bars mounted for limitedradial movement on said roll, and means for actuating said bars duringrotation of said roll, said means including one or more mutilatedhunting gears and a plurality of co-acting radially-movablemotiontransmitting units mounted around and having relative angularshifting movement with respect to the teeth of said gears.

6. In a machine of the class specified, a printing roll, means forrotating said roll, a plurality of printing bars, bar actuating cammembers mounted for coacting limited radial and longitudinal movement onsaid roll for imparting radial printing movement to said printing bars,a plurality of radially movable plungers, means having a positivedriving connection with said roll for supporting said plungers, ahunting gear provided with teeth adapted to co-act with said plungers,and means for transmitting motion from said plungers to said printingbar actuating members.

7. In a machine of the class specified, a printing roll, means forrotating said roll, a plurality of printing bars mounted for limitedradial movement on said roll, a plurality of cam bars for actuating saidprinting bars, said cam bars being mounted for longitudinal movementwith respect to said roll; and means for actuating said cam barincluding a mutilated hunting gear and a plurality of radially movableplungers mounted around said gear, said gear having teeth adapted toco-act with said units and being free to have relative angular movementwith respect thereto, and a gear member for carrying said units having apositive connection with said printing roll, there being a prime numberof co-acting teeth relative to the number of units.

8. In a machine of the class specified, a printing roll assemblycomprising a supporting shaft, a plurality of cam bars mounted forlongitudinal movement around said shaft, a pluralityoi printing barssupported for radial movement by said cam bars; and means for impartinglongitudinal reciprocatory movement to said cam bars comprising aplurality of pivoted members mounted for positive rotation with saidprinting roll, a plurality of radially movable plungers for actuatingsaid pivoted members, and one or more relatively movable hunting gearsco-acting with said plungers, the total number of teeth of said lattergears and the total number of plungers being prime one with respect tothe other to thereby produce relative angular movement between thehunting gears and plungers during each revolution of the hunting gears.

9. In a machine of the class specified, a printing roll assemblycomprising a main supporting shaft, a plurality of longitudinallymovable cam bars mounted around said shaft, a plurality of coactingprinting bars mounted for radialmovement on said cam bars, a gear fordriving said roll, a plurality of pivotally mounted dogs mounted forpositive rotation with said gear and adapted to transmit motion to saidcam bars, a further gear connected to said printing roll gear, aplurality of radially movable plungers carried by said latter gear andadapted to engage said dogs, and one or more hunting gears mounted forfree rotation with respect to said plunger-carrying gear and providedwith teeth adapted to co-act with said plungers, the teeth in saidhunting gear being greater or less by an odd number than the number ofplungers.

10. In a machine of the class specified, a printing roll, a plurality ofradially movable printing bars carried by said roll, a plurality oflongitudinally movable cam bars adapted to actuate said printing bars,and end retainer members provided with radial guide ways for saidprinting bars, means carried by said retainer members for normallyurging said printing bars to retracted position, and means for actuatingsaid cam bars to move said printing bars into printing position; saidmeans comprising a plurality of pivotally mounted dogs having a positiveconnection with said printing roll, a plurality of co-acting radialmovable units rotating adjacent to and in synchronism with said dogs,and a relatively angularly movable hunting gear for actuating saidunits, said gear being provided with a plurality of printing teeth and aplurality of non-printing teeth, the total number of teeth of said gearand the total number of units bearing a prime relation to each other toproduce relative angular movement therebetween.

11. A printing roll assembly for yarn or thread printing machinescomprising a main supporting shaft, a plurality of longitudinallyreciprocating cam bars, a plurality of radially reciprocating printingbars, end retainer members provided with radial guide ways for saidbars, a relatively stationary cam at one end of said roll for normallyurging said cam bars in one direction, and means at the opposite end ofsaid roll for moving said bars in the opposite direction, said meanscomprising a gear secured on the end of said shaft and provided with aplurality of pivotally mounted dogs and an idler gear in mesh with saidlast named gear, said idler gear carrying a plurality of radiallymovable plungers adapted to engage said dogs and one or more huntinggears mounted within said idler gear and adapted to actuate saidplungers.

12. In a machine of the class specified, a printing roll, a plurality ofradially movable printing bars carried by said roll, a gear secured onone end of said roll, andian idler gear in mesh with said first namedgear, said idler gear carrying one or more relatively movable huntinggears and a plurality of radially movable plungers mounted for positiverotation with the idler gear, the number of teeth of said hunting gearbeing greater or less by an odd number than the number of plungers, andmeans for transmitting motion from said plungers to said printing barsto actuate the latter.

13. In a yarn or thread printing machine, a printing roll assemblycomprising a shaft, pairs of co-acting longitudinally and radiallymovable cam bars mounted around said shaft, one bar of each pair beinglongitudinally movable and its coacting bar being radially movable, saidbars being provided'with co-acting cam teeth on the opposed iacesthereof, means for irregularly actuating one bar of each pairlongitudinally of said roll to impart radial movement to its co-actingbar, and printing bars secured on said radially moving bars.

14. In a yarn or thread printing machine, a

printing roll, radially movable printing bars on said roll; and meansfor actuating said bars comprising a longitudinally movable cam bar, agear secured on the end of said roll, said gear being provided with aplurality of pivotally mounted dogs, an idler gear in constant mesh withsaid first named gear, said idler gear being provided With a pluralityof radially extending grooves, a plurality of plungers mounted in saidgrooves, and one or more hunting gears mounted on the same axis as saididler gear, said hunting gears being mounted for relative movement withrespect to said idler gear and being provided with teeth which co-actWith said plungers, the relative ratio of teeth and plungers being suchas to advance or retard each hunting gear during one revolution of saididler gear.

15. In a yarn or thread printing machine, a plurality of printing unitsmounted in series, each of said units comprising a dye feeding roll, adye roll and a printing roll, said rolls being geared for synchronousrotation; an idler gear connected for positive rotation with andadjacent to said printing roll, one or more hunting gears mounted forrelative free. rotation on the same axisas said idler gear, said idlergear carrying a plurality of radially movable freely slidable plungersadapted to engage the teeth of said hunting gears during pivotallymounted dogs connected to said printing roll, a radially movableprinting bar for each i of said dogs, and means for transmitting motionfrom said dogs to said printing bars to actuate the latter.

16. A printing roll assembly for yarn or. thread printing machinescomprising a plurality of radially movable printing bars, a plurality ofbodily rotating radially movable units, means for transmitting motionfrom said units to said bars, and a relatively rotatable hunting gearfor actuating said units, said gear being provided with teeth whosenumber is greater or less than the number of said units and prime withrespect to the latter.

1?. A printing roll assembly for yarn or thread printing machinescomprising a plurality of radially movable printing bars, a plurality ofbodily rotating radially movable units, means for trans mitting motionfrom said units to said bars, and a relatively rotatable hunting gearfor actuating said units, said gear being provided with teeth whichco-act with and whose number bears a prime relation to the number ofunits.

18. A printing roll assembly for yarn or thread printing machinescomprising a supporting shaft, a plurality of longitudinally movable cambars mounted on said shaft, a plurality of radially movable cam barsadapted to co-operate with said longitudinally movable bars, printingbars secured on said radially movable bars, end retainer membersprovided with radial guide ways for said radially moving bars, springmeans adapted to normally urge said last named bars radially inwardlyagainst said first-named bars, a cam for normally urging saidlongitudinally movable bars in one direction; and means for normallyurging said bars in the opposite direction, said means comprising aplurality of pivotally mounted dogs, a gear connected to said printingroll shaft for carrying said dogs, and an idler gear connected to saidfirst named gear, said idler gear being provided with a plurality ofradially movable plungers; and means for actuating said plungers, saidmeans comprising one or a plurality of hunting gears which have a freefloating action on the same axis as said idler gear and are providedwith a plurality of teeth-adapted to co-act with said plungers andtransmit motion to said dogs, the number of teeth of each hunting gearand the number of plungers being prime with respect to one another.

19. In a yarn or thread printing machine, means for irregularly printingthe yarn or thread including one or a plurality of hunting gearsprovided with teeth which have a certain number thereof shallow in depthto act as printing teeth, printing bars or analogous members, and meansfor transmitting motion from said printing teeth to said bars, saidlatter means including a plurality of cam elements mounted around saidhunting gears and having relative angular shifting movement with respectto the teeth of the gears.

20. In a yarn or thread printing machine, means for irregularly printingthe yarn or thread including an idler gear which houses and carriestherewith a plurality of radially movable units, and one or a pluralityof hunting gears mounted for relative angular movement on the same axisas the idler gear and provided with teeth adapted to co-act with saidunits.

' JOSEPH D. KREIS.

